NO START

alikat · 03-10-2012, 12:39 PM

Audi a6 1996 quattro, have fuel all the way to the rails, got spark and still wont fire up. Crank sensor? Any help would be GREAT.. Thanks.. My dad will appreciate it...

A6Gary · 03-10-2012, 09:59 PM

Could be the cam position sensor, which is located on the rear of the left (driver's side) head.

alikat · 03-11-2012, 09:16 AM

Quote:

Originally Posted by A6Gary

Could be the cam position sensor, which is located on the rear of the left (driver's side) head.

Where does it plug into the wiring harness to test for voltage etc. Thank you.

audiqv8 · 03-11-2012, 10:28 AM

Have you try reading the DTC code? Are there any codes? You stated that you have spark and fuel pressure up to the rail. It would appear that the injector are not firing. Pull the codes and post them here.

alikat · 03-11-2012, 01:20 PM

Quote:

Originally Posted by audiqv8

Have you try reading the DTC code? Are there any codes? You stated that you have spark and fuel pressure up to the rail. It would appear that the injector are not firing. Pull the codes and post them here.

Read the OBD2 codes and they are specific to Audi. P1106 and P1250.

How do you read the DTC codes?

audiqv8 · 03-11-2012, 02:16 PM

DTC codes (Diagnostic and Trouble Codes)are the original codes used by Audi and their scan tool VAG 1551.

VAG 1551 OBDII

17514 P1106 O2 Sensor Circ.,Bank2-Sensor1 Voltage too Low/Air Leak
17658 P1250 Fuel Level Too Low

Are you sure you have enough gas in the tank? There are no codes which states that either the crank or cam signal is missing or grounded.

alikat · 03-11-2012, 03:39 PM

Quote:

Originally Posted by audiqv8

DTC codes (Diagnostic and Trouble Codes)are the original codes used by Audi and their scan tool VAG 1551.

VAG 1551 OBDII

17514 P1106 O2 Sensor Circ.,Bank2-Sensor1 Voltage too Low/Air Leak
17658 P1250 Fuel Level Too Low

Are you sure you have enough gas in the tank? There are no codes which states that either the crank or cam signal is missing or grounded.

Yes, it is a VERY slow fuel gauge but if you wait it shows 1/2
tank. My dad opened up the line to the fuel filter, turned over the engine and MUCH gas was moved, did the same to where the fuel
rail is and the same. So WE assume that it is getting gas. So that is the VERY confusing thing..

audiqv8 · 03-12-2012, 03:20 PM

Your fuel injectors are not firing. Did the car just not start one day?

alikat · 03-12-2012, 05:59 PM

I was leaving the house and turned a corner and IT died, no warning, no nothing. Can it be the cam sensor or does that also help with the timing
of giving spark? Can it be one of the relays? Thanks much...

audiqv8 · 03-13-2012, 10:57 AM

Lets try pulling the codes again. Crank the engine for about 10 seconds, but leave the key in the ON position (do not turn the key off). Plug in your scanner and retrieve the codes. If you turn the key off, some codes might be erased. There is also a fuse (S72) according to the electrical diagram which control the injectors.

03-11-2012, 10:28 AM	#4
audiqv8 AudiWorld Super User Garage is empty, add now Join Date: Apr 2002 Posts: 3,041	Have you try reading the DTC code? Are there any codes? You stated that you have spark and fuel pressure up to the rail. It would appear that the injector are not firing. Pull the codes and post them here. Last edited by audiqv8; 03-11-2012 at 10:35 AM.

03-13-2012, 10:57 AM	#10
audiqv8 AudiWorld Super User Garage is empty, add now Join Date: Apr 2002 Posts: 3,041	Lets try pulling the codes again. Crank the engine for about 10 seconds, but leave the key in the ON position (do not turn the key off). Plug in your scanner and retrieve the codes. If you turn the key off, some codes might be erased. There is also a fuse (S72) according to the electrical diagram which control the injectors. Last edited by audiqv8; 03-13-2012 at 11:02 AM.

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03-10-2012, 09:59 PM	#2
A6Gary AudiWorld Super User Garage is empty, add now Join Date: Jan 2003 Posts: 5,370	Could be the cam position sensor, which is located on the rear of the left (driver's side) head.

03-11-2012, 02:16 PM	#6
audiqv8 AudiWorld Super User Garage is empty, add now Join Date: Apr 2002 Posts: 3,041	DTC codes (Diagnostic and Trouble Codes)are the original codes used by Audi and their scan tool VAG 1551. VAG 1551 OBDII 17514 P1106 O2 Sensor Circ.,Bank2-Sensor1 Voltage too Low/Air Leak 17658 P1250 Fuel Level Too Low Are you sure you have enough gas in the tank? There are no codes which states that either the crank or cam signal is missing or grounded.

03-12-2012, 03:20 PM	#8
audiqv8 AudiWorld Super User Garage is empty, add now Join Date: Apr 2002 Posts: 3,041	Your fuel injectors are not firing. Did the car just not start one day?

03-12-2012, 05:59 PM	#9
alikat Audiworld Junior Member Garage is empty, add now Join Date: Mar 2012 Posts: 22	I was leaving the house and turned a corner and IT died, no warning, no nothing. Can it be the cam sensor or does that also help with the timing of giving spark? Can it be one of the relays? Thanks much...